Quaking Aspen
Populus tremuloides · Salicaceae (Willow and Poplar family)
AI-generated identification · may be incorrect
Leaf Morphology
Leaf Type
Simple, deciduous
Shape
Broadly ovate to nearly orbicular with an abruptly acuminate tip
Margin
Finely crenate-serrate with rounded to blunt teeth
Arrangement
Alternate, featuring a noticeably flattened petiole that allows the leaf to tremble in the slightest breeze
Venation
Pinnate to somewhat palmately net-veined from the base, with a prominent pale yellow-green midrib and branching secondary veins
Key Features
Flattened leaf stem (petiole), nearly round or broadly ovate leaf shape with a sharply pointed tip, finely toothed margins, and smooth white-to-greenish bark on mature trees.
Description
The Quaking Aspen is a slender, fast-growing deciduous tree famous for its striking white bark and brilliant golden autumn foliage. The leaves are uniquely engineered with flattened petioles, causing them to rustle and flutter audibly in even a gentle wind, creating a soothing sound characteristic of aspen groves.
Habitat
Found in moist to dry uplands, mountain slopes, along streams, and forest edges. Prefers full sun and well-drained soils, often forming extensive clonal colonies.
Native Range
Widespread across North America, from Alaska south to northern Mexico, spanning boreal to temperate zones.